首页
登录
职称英语
[originaltext] A team of scientists recently began a project to measure the
[originaltext] A team of scientists recently began a project to measure the
游客
2023-08-25
43
管理
问题
A team of scientists recently began a project to measure the effects of loud noises on sea animals. If the sounds don’t harm the animals, then the researchers can go ahead with a plan to transmit sound waves through the Pacific Ocean to take the earth’s temperature. Sound travels faster through warm water than cold water. By analyzing the speed of sound through the ocean over a time, the scientists will be able to determine if our planet is warming up. The experiment was nearly cancelled more than a year ago because environmental groups feared that the sound would confuse or harm the sea animals. So, scientists are conducting tests on the animals first. The researchers lowered a loud speaker that emits low frequency sound about 1000 meters beneath the ocean. Scientists at the site transmit sound waves into the ocean. Radio transmitters attached to some of the sea animals help the researches keep track of the animals movements. If sea animals are distressed by the sounds, they would swim away from the speakers. So far, there aren’t any signs that the animals are being harmed. Researchers at the site noticed that large numbers of sea animals swim near the speaker whether it was turned on or off, but it is still too soon to know for sure, the scientists admit. The test will continue through September. if If all goes well, they say, fwe can begin measuring temperature changes on our planet.
Questions 23 to 25 are based on the passage you have just heard.
23. What is the purpose of analyzing the speed of sound through the Pacific Ocean?
24. What was the reaction of the sea animals to the sound tests?
25. For what purpose were radio transmitters used?
选项
A、They were frightened and distressed.
B、They swam away when the speaker was turned on.
C、They swam closer to "examine" the speaker when it was turned off.
D、They didn’t seem to be frightened and kept swimming near the speaker.
答案
D
解析
转载请注明原文地址:https://tihaiku.com/zcyy/2955951.html
相关试题推荐
[originaltext]TheSaharaDesertisoneofthedriestregionsonearth.Very
[originaltext]TheSaharaDesertisoneofthedriestregionsonearth.Very
[originaltext]TheSaharaDesertisoneofthedriestregionsonearth.Very
[originaltext]Manyinternationalstudentschooselargeschools.Butagrowi
[originaltext]Manyinternationalstudentschooselargeschools.Butagrowi
[originaltext]Manyinternationalstudentschooselargeschools.Butagrowi
[originaltext]W:WithmetodayinthestudioisDr.MiriamRichards,who’sale
[originaltext]W:WithmetodayinthestudioisDr.MiriamRichards,who’sale
[originaltext]M:Solet’smeetourfirstholidaymaker.Hellothere.canyoute
[originaltext]M:Solet’smeetourfirstholidaymaker.Hellothere.canyoute
随机试题
JobAdvertisementOurcompanyisTianheAutomobileC
______typicallyrepresentedtheworldpatternbetweenthetwoworldwars.A、TheV
Howmanypeoplediedunderthelamivudinedrugtreatment?[br][originaltext]A
PartⅡReadingComprehension(SkimmingandScanning)Directions:Inthispart,y
下列对增强窗户的保温能力措施中,不合理的是( )。A.增加玻璃厚度 B.提高
引起PCP的病原体是A:汉坦病毒B:立克次体C:卡氏肺孢菌D:组织胞浆菌
母线短路失压后的处理原则是()如故障点在母线侧隔离开关外侧,可将该回路两侧隔离开
2001年“9*11”恐怖袭击事件在美国发生,投资者纷纷拋售美元,购入黄金保值,
(2021年真题)误服碘酊洗胃时,宣选用的洗胃液是()A.硫酸镁溶液 B
通过拖动窗口的标题栏,可以改变该窗口在屏幕上的位置。()
最新回复
(
0
)